The Levelogger App Interface uses Bluetooth® wireless technology to connect a Solinst datalogger to your smart device. Once connected, you can use the Solinst Levelogger App on your device to communicate with the datalogger. The Solinst Levelogger App allows you to view and save real time data from the connected datalogger, as well as download, view, transfer and e-mail logged readings. You can also program the datalogger or apply a saved Setting.